Timeout too short when connecting to a remote JIRA server

I've been trying to connect my project to its JIRA server but it timeouts ("Error" dialog with "Read timed out" message) about 5 seconds about trying.

I've checked the network traffic and noticed the answer comes just after the error message.

Question: Is there a way to increase this timeout to, say, 30 seconds?

Steps to reproduce: Tools -> Tasks & Contexts -> Configure Server -> [Servers dialog is shown] -> Fill data of a remote or slow server -> Press [Test] (If the server takes longer than ~5 seconds to answer you'll get the error message)

For reproducing one could also place some mute listener on port 80 (e.g. netcat -l)